On Tue, Jun 26, 2007 at 10:47:16AM -0700, Roland Dreier wrote: > > What about allowing to allocate coherent memory for CQ inside the kernel > > to fix issue with Altix machines? > > Sorry... I've been remiss in posting about this. I would actually > prefer to see an extension to the dma_map_sg() interface (a new flag > perhaps?) that would set the right magic bit in the DMA address on > altix. The refactoring of ib_umem_get() to be called by low-level > drivers makes this a fairly clean approach, and it avoids the problems > with using dma_alloc_coherent() to allocate userspace buffers (for > example, dma_alloc_coherent() uses up kernel virtual addresses, which > may be scarce on 32 bit architectures). >
Check. Generating a patch for OFED 1.3 is on my to do list. -- Arthur _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
